%0 Journal Article
%A V. I. Gromak
%T Nonlinear evolution equations and equations of $P$-type
%J Differencialʹnye uravneniâ
%D 1984
%P 2042-2048
%V 20
%N 12
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1984_20_12_a2/
%G ru
%F DE_1984_20_12_a2